Model:CAM-CARMA

CAM-CARMA

Also known as
Model type	Modular
Model part of larger framework
Note on status model
Date note status model

Incorporated models or components:

Spatial dimensions
Spatial extent
Model domain	Terrestrial
One-line model description	A GCM for Titan that incorporates aerosols
Extended model description	I am developing a recent adaptation of CAM 3.0 that has been converted to Titan by Friedson et al. at JPL. I am adding the aerosol microphysics from CARMA.

Keywords:	global climate,

Supported platforms	Mac OS
Other platform
Programming language	Fortran77, Fortran90
Other program language
Code optimized
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development
Does model development still take place?	Yes
If above answer is no, provide end year model development
Code development status	Active
When did you indicate the 'code development status'?	2020
Model availability	As code
Source code availability (Or provide future intension)	Through web repository
Source web address	http://www.ccsm.ucar.edu/models/atm-cam/
Source csdms web address
Program license type	Other
Program license type other	--
Memory requirements	large
Typical run time	varies greatly

Describe input parameters	--
Input format	ASCII
Other input format
Describe output parameters	--
Output format
Other output format	netcdf
Pre-processing software needed?	No
Describe pre-processing software
Post-processing software needed?	No
Describe post-processing software
Visualization software needed?	Yes
If above answer is yes	IDL
Other visualization software

Describe processes represented by the model	CAM treats radiative transfer, tidal forcing from Saturn, a planetary boundary layer and surface interaction, thermal conduction in the soil and chemistry. The CARMA part of the code does the aerosol microphysics involving emission, coagulation and sedimentation.
Describe key physical parameters and equations	--
Describe length scale and resolution constraints	Currently there are only initial data sets for 10x15 degrees longitude and latitude. This model is meant for global scale dynamics.
Describe time scale and resolution constraints	I am running the model with dynamical time steps of 1800 seconds, but it only computes the radiative transfer every 200 timesteps.
Describe any numerical limitations and issues	This is a large model that takes significant computing resources to spin up run.

Describe available calibration data sets
Upload calibration data sets if available:
Describe available test data sets
Upload test data sets if available:
Describe ideal data for testing

Do you have current or future plans for collaborating with other researchers?	I am collaborating with Jim Friedson and Bob West at JPL and Erika Barth at SWRI, as well as my adviser, Brian Toon.

Is there a manual available?	Yes
Upload manual if available:
Model website if any	http://www.ccsm.ucar.edu/models/atm-cam/
Model forum / discussion board

Comments	NOTICE: code is free available through CCSM UCAR website: http://www.ccsm.ucar.edu/models/atm-cam/ No need to register

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Model info

Authors

Source code

Model citations

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Featured publication(s)	Year	Model described	Type of Reference	Citations
Collins, W.D.; Rasch, P.J.; Boville, B.A.; Hack, J.J.; McCaa, J.R.; Williamson, D.L.; Kiehl, J.T.; Briegleb, B.; 2004. Description of the NCAR Community Atmosphere Model (CAM 3.0).. , , . (View/edit entry)	2004	CAM-CARMA	Model overview	2336
Friedson, A. James; West, Robert A.; Wilson, Eric H.; Oyafuso, Fabiano; Orton, Glenn S.; 2009. A global climate model of Titan's atmosphere and surface. Planetary and Space Science, 57, 1931–1949. 10.1016/j.pss.2009.05.006 (View/edit entry)	2009	CAM-CARMA	Model overview	49
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